How to Make a Medieval Trebuchet Out of Cardboard

Step 3 Making Patterns

Here are the exact measurements I used:

Part A1 -
20 in. wide - 20 in. tall

Part A2 -
20 in. wide - 11 in. tall

Part B -
41 in. long
4 in. wide at top / 6 in. wide at bottom

Part C -
41 in. long
6 in. wide at top / 8 in. wide at bottom

*Parts D and E will be covered in another step